Most existing oilfield filter units are built for only water filtration (fluid group 2, SEP) . According to the European Law (PED 2014/68/EU) all filter housings for filtration of waste water or brines like formates, bromides, acids must be classified under fluid group 1.

Our offshore frames are designed and built in accordance with DNV2.7-1, certified by DNV.

Together with the Rudi quick opening closure our dual vessel filter unit is the most flexible, effective and HSE friendly filter unit available on the market.

Dutch Filtration is manufacturer of filter equipment and filter consumables for the upstream oil and gas. The dual vessel units are also available for long and short term rental. All common filter cartridges and oil absorption elements are in stock.

After the final approval by DNV tomorrow, the DFC24 dual vessel cartridge unit will be shipped to large oilfield service company for filtration of completion fluids.

Dutch Filtration has developed an high performance absolute pleated filter cartridge especially for polishing of oilfield brines and fluids. Our large surface filter cartridge has a multi layer system for; absolute filtration, high dirt holding capacity and high throughs. The cartridge is completely welded and free adhesives. The filter cartridge is available 0.5 - 100 micron and standard in glass fibre/polyester or polypropylene media

Features

- Especially design for oilfield fluids

- Applicable for temperature up to 85 degC (185 F)

- A total thermally welded construction of filter media, core, cage and caps

Current oil prices are forcing oil companies and even more oilfield service companies to cut their spend on filtration of fluids. Many studies have shown the importance of clean completion or wellbore clean up fluids to maximize oil or gas production.

Dirty completion or workover fluids will cause formation damage which will reduce the production of an oil or gas well.

The cost of filtration depends on the effluent requirements, influent quality and many other variables.

Roughly the cost for completion fluids / well bore clean up filtration can be split in:

1.) Dual Vessel Cartridge Filter Unit (or known as Duplex, Dual pod, Twin pod filter ) is relative cheap and easy to operate. This unit is used for small batches and polishing filtration of large batches.

Depending on the influent and effluent. Small batches can be done in one stage down to the required fluid quality of in two stage filtration with pre-filtration (50 -10 micron) and polishing filtration (10-2 micron) in one unit.

The filter press or Vertical Pressure Leaf will filter large batches and high dirt loads done to 5 micron nominal, before it is polished with the dual cartridge filter unit (1-5 micron).

Selection of Filter Press or Vertical pressure Leaf (VPL) depends on the end users preference and the type of fluid. In general heavy brines are filtered with filter presses and light brines can be filter with VPL unit. Filter press needs to be manual cleaned and VPL is semi automatic.

The DE filter is using a diatomaceous earth (DE) as filter aid.

Equipment cost

A filter press with DE mixing skid is approximately 4x the price of a Twin Vessel cartridge filter. Same for a VPL unit. Only the average filtration area of a VPL is 600-800 sq.ft. and filter press 1200 sq.ft.

The larger the surface area the more dirt particles can be hold in the filter before it needs to be cleaned.

Filter Consumables

The cost of consumables for per removed kg of dirt in a DE-filter is about 1/15 compare to the removed kg of dirt using pleated filter cartridge in a cartridge filter unit. DE is 1/8 of the price compare to nominal rated wound or spun bonded cartridge.

Selection the right consumable

To meet the required fluids quality, a pleated absolute cartridge is 95% the only viable solution.

Note: After a DE filter unit a cartridge filter unit with absolute pleated elements is mandatory because DE particle may pass the De filter and can plug the formation during completion.

Manpower

- Cartridge filter units can be operated by one operator. This operation is relative simple

- DE- filters Filter Press or Vertical Pressure Leaf need to be operated by two operators and require more training to operate safe and efficient.

Finally

Filtration in oilfield operations can be done in several ways. Have the lowest OPEX use a DE-filter minimize the spend on absolute pleated cartridges. To keep the CAPEX low, a Twin Vessel cartridge filter unit can filter the fluid to the required quality but will result in a high spend on consumables.

The new Dual Vessel Cartridge Filter Unit is based on 20 years experience manufacturing oilfield equipment. All new features are based on customer feedback combined in our unique dual pod filter unit. HSE, efficiency and reliability are the key drivers for our product improvement and design. The Rudi Quick Opening Closure allows the operator to fast and safe open and close the filter vessel for change out of filter elements. Our unit is designed and built in accordance with DNV 2.7-1 and also certified by DNV. Our standard DFC24 has two vessels of each 50 cartridges and 6 valves for parallel, in series and by-pass operation.

DUTCH FILTRATION DESIGN

Our new design opening closure does not need any tool to open and close the filter vessel. Just release the pressure and one hand lever to rotate the lid, 2nd hand operate the push lever to lift de lid and swing away in 2 seconds. Vice versa to close.

The unique gasket seals off the vessel 100% leak free.

Safe and Quick,

Our dual vessel cartridge or bag filter units (also known as duplex unit, twin pot, twin vessel unit) are widely used for many applications in oilfield operation on and offshore such as: completion fluids filtration, wellbore clean up, workover fluids, gravel pack, slop water treatment, produced water, base oil filtration. In case the fluid batches are larger we recommend to use a filter press or vertical pressure leaf filter as pre-filter.

Most existing oilfield filter units are built for only water filtration (fluid group 2, SEP) . According to the European Law (PED 2014/68/EU) all filter housings for filtration of waste water or brines like formates, bromides, acids must be classified under fluid group 1.

Our offshore frames are designed and built in accordance with DNV2.7-1, certified by DNV.

Together with the Rudi quick opening closure our dual vessel filter unit is the most flexible, effective and HSE friendly filter unit available on the market.

Dutch Filtration is manufacturer of filter equipment and filter consumables for the upstream oil and gas. The dual vessel units are also available for long and short term rental. All common filter cartridges and oil absorption elements are in stock.

After the final approval by DNV tomorrow, the DFC24 dual vessel cartridge unit will be shipped to large oilfield service company for filtration of completion fluids.

Absolute Pleated Filter Cartridge

The DPA-serie Filter Cartridge is designed and engineered for high accuracy final polishing filtration of all type’s of fluids. <br />... More Info Less Info

The DAP-serie Filter Cartridge is designed and engineered for high accuracy final polishing filtration of all type’s of fluids.

The construction is designed and produced to withstand the harsh requirements of the Oilfield Industry.

The Polypropylene inner core has additional strength and all components are thermally fused, allowing operations at higher temperature, pressure and make the cartridge compatible with most fluids and additives in the industry.

The construction is designed and produced to withstand the harsh requirements of the Oilfield Industry.

The Polypropylene inner core has additional strength and all components are thermally fused, allowing operations at higher temperature, pressure and make the cartridge compatible with most fluids and additives in the industry.

Technical Specification

Micron rating 0.5 – 100 micron

Beta ratio 5000 (99.98% effective removal)

Filter media Pleated polypropylene or glass fibre (3 layer system)

Core and caps ABS or Polypropylene

Seal material BUNA (other on request)

Length 40 inch (other on request)

Outside Diameter 2.5 inch

Connections Plug in type 222, DOE, 226

Max. Working Temperature 85°C (185°F)

Max. Differential Pressure 5.5 bar @ 25°C (80 psi @ 77F)

Max. Recommend flow 6 m3/hr / 40inch cartridge (26 GPM)

Change Out Differential Pressure 2.5 bar (37 psi)

Construction Thermally fused

Oil Absorption Filter Cartridge

Two types of oil absorption filter cartridges. High Absorption without built up of dP and Oil Absorption which fully blocks when saturated. no by-pass of hydrocarbons.... More Info Less Info

The Dutch Filtration offers two types of Oil Absorption Cartridges. The cartridge absorbs oil from water in one single pass with efficiency of 99%. 1st type OilLock which absorbs the oil and after saturation blocks completely. This cartridge will be changed out on differential pressure. Very simple operation and fail safe. No oil at clean side possible.

2nd type OilWrap oil absorbing element absorb the oil from water very efficient but does not create a differential pressure. The 40inch element can hold 1.3 kgs of oil and handle flowrate rates up to 4 m3/hr /40inch element.

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The cartridge 2.5inch with code 3 or DOE connection is availble in 30 and 40 inch length